Paraffining machine



March 3, 1936. K. E. GARLING PARAFFINING MACHINE Filed Mar oh 25,

1931 2 Sheets-Sheet l gvwe'nboz E. fiaring Karl Mam}? 1936 K. E. GARLINGPARAFFINING MACHINE Filed March 25, 1931 2 Sheets-Sheet 2 MM m a ma E Zw K Patented Mar. 3, 1936 UNITED STATES PATENT OFFICE StrawManufacturing Corporation,

Newark,

N. J., a corporation of New Jersey Application March 25,

Claims.

The machine herein disclosed is more particularly employed in themanufacture of sip-straws, or straws made from paper strips spirallyrolled to form slender tubes. These tubes are cut to length and areemployed very largely in drinking soda dispensing emporiums.

Among the principal objects which the present invention has in view are:To treat the sip-straws to a bath in very highly treated parafiine; tosecure thereby the maximum penetration of the paraffine into and aboutthe sip-straws; to subsequently remove from the sip-straws all surplusparaffine; to speed up the operation and to economize in the use of theparaffine.

Drawings Figure l is a vertical section of a paraffining machine whenconstructed and arranged in accordance with the present invention, theparts 30 being shown in their opened or out of service position.

Figure 2 is a similar view showing the first steps followed during theoperation.

Figure 3 is a cross section of the machine shown as on the line 3-3 inFigure 2.

Description is the double boiler 8, another the container 9,

and the third the motor 28. In the boiler 8 is placed a charge ofparaffine indicated by the letter X in Figures 1 and 2. The paraffine ismelted by heated water introduced through the pipe to sections I2 and isof the boiler 8. The upper section 12 of the boiler B is removed fromthe lower section [3 to form a heated centrifuging chamber above theparaffine into which the container 9 is received to be there revolvedrapidly by the motor 28 through the means of the shaft I4, forexpelling, or throwing off surplus parafiine lengthwise of the straws,so that no paraffine remains attached to or lodged within the straws butthat which has permeated the body of the product. Each container isoffset from the center of rotation, so as to insure centrifugal actionthe entire length of the product in amount greater than the adhesion orviscosity tension of the paraffin. The upper section l2 and the lowersection l3 are connected through pipes l5.

A cover l6 may be lowered to close the top opening ll of the container9, thus preventing any escape of heat from the container and the productbeing treated. By this arrangement the 1931, Serial No. 525,167

heat that is held in the double boiler 8, is all that is necessary toinsure the perfect action of infiltration of the parafiine throughoutthe product being treated.

It will be understood that the circulation of heated water is maintainedthrough the pipes I I, I5 and I8 and the nipples, connecting the samewith the sections l2 and I3. A heater, not shown herein, is used formaintaining the heat at the proper degree and by using a double boileras shown, any burning of the paraffine is avoided.

The product heretofore referred to which is handled in the presentmachine is sip-straws. These straws are gathered and placed in wirebaskets l9 as shown best in Figure 3 of the drawings. The container 9 isarranged to form open pockets or receptacles 20 in which the baskets l9are placed, the straws being disposed radially of the container, so thatthe surplus paraffine is discharged therefrom lengthwise thereof. As maybe seen more especially in Figure 3 of the drawings, the pockets orcompartments 20 provide a greater radial length than width, and basketsl9 are constructed to substantially fit within these compartments sothat the straws contained therein cannot possibly assume any otherposition than a substantially radial position with respect to thecontainer. This arrangement results in the paraffine being caused tounfailingly pass through each straw as well as through the crevicesexisting between the several straws, and thus paraffine is, by thecentrifugal action, applied throughout the length of the straws,particularly on the inside thereof, in. an even condition and withoutany likelihood of any drops remaining within and closing the passagethrough any of the straws. When the compartments 20 are filled with thebaskets i 9, the double boiler 8 with its paraffine content is lifteduntil the paraifine X totally surrounds the container 9 and the baskets20 with the straws contained therein. To this end the double boiler 8 isprovided with a hydraulic ram 2! which is lifted by water under pressureor other means under control of the operator.

To accommodate the elevation and depression of the double boiler 8, thepipes H and [5 are connected with the supply and waste pipes 22 and 23respectively through the folding pipe links 24 and 25 respectively. Thescissors-like arrangement of these pipes provides a resilient connectionbetween the pipes immediately connected with the double boiler and withthe hot water supply with which the pipes 22 and 23 are connected, saidsupply not being shown in the present drawings.

It will be understood that the heated water supplied by the jacket ofthe double boiler 8, maintains the parafiine at an even temperature.

The container 9, after the compartments 2!! have been filled, is closedby lowering the cover l6 and is locked in place by means of bolts 26with which the said cover is provided. The cover is in position when thedouble boiler 8 is raised. When the product having been saturated withparafline, the boiler 8 is now lowered; the cover substantially closesthe upper opening of the double boiler 8 thereby retaining all of theheat of the parafline and double boiler 8. The shaft l4 and'thecontainer 9 mounted thereon are now rapidly rotated by means ofthepower-driven mechanism having the belt 21 and electric motor 28. Therotation of the container 9 centrifugally throws off all superfluousparafiine carried by the straws, or the container, to precipitate thesame against the side walls of the double boiler 8. When the rotationhas continued sufficiently long, the motor is stopped and the cover I6is lifted by means of the tackle employing the cables 29 which areattached to the cover by means of the eyelets. The wire baskets [9 arenow lifted from the double boiler 8 to make way for a new supply. Byexpelling the parafline from the straws in the manner described allsurplus is gotten rid of. The paraffine, at the time of its removal fromthe straw, is approximately as liquid as the paraifine in the bottomsection of the boiler. This effect is due principally to the fact thatwhen the container 9 is freed from the liquid parafline, it is held justabove the liquid mass in the chamber formed by the cover l6, and theupper section [2 of the double boiler 8.

It is obvious that by means of this arrangement, the wringing processcan be maintained to absolute elimination from the product of anysuperfluous parafiine.

To support and guide the double boiler 8, and parts connected therewith,the standards 30 are mounted on the standing structure and are so shapedas to form open runways or guides for the extension 3| connected to andset out from the boiler.

' I claim: 7

1. A paraflining machine, comprising a water jacketed boiler thejacketed portions whereof are separately supplied with heating material,means for elevating and depressing said boiler, a container adapted forholding the tubular product to be treated, said tubular product beingdisposed in radial disposition within said container, said containerbeing supported by a stationary structure above said boilerin positionto extend within the upper portion of said boil-er when said boiler isin its lowered position, a prime mover for rotating said container tocause the contents of said tubular product to be expelled therefromhorizontally, and a cover for said container to prevent the heat of saidboiler from escaping therefrom during the rotation of said container.

2. In a parafllning machine, a boiler for heating paraffine, a containerfor holding a product and to immerse the product in the parafllne withinsaid boiler, said container providing a radial compartment having agreater dimension radially 3. In a parafiining machine, a boiler forheating parafline, a container for holding a product and to immerse theproduct in the parafline within said boiler, said container providing aradial compartment having a greater dimension radially thancircumferentially, a basket substantially fitting said compartment so asto likewise be positioned with a greater dimension radially thancircumferentially and entirely offset in one radi a1 direction from thecenter whereby a product consisting of a number of tubes of greaterlength than the width of said basket and positioned within saidcompartment will be maintained in substantially radial position, meansfor securing a relatively elevated position of the container above thelevel of the paraffine and means for rotating said container andcentrifugally expelling the surplus parafiine from the tubeslongitudinally of said tubes.

1-. A parafiining machine having a boiler pro viding a lowerparafiine-containing chamber and an upper centrifuging chamber, arotatable con tainer mounted within said boiler and including aplurality of spaced radial compartments entirely oifset in one radialdirection from the center for supporting segregated quantities ofsubstantially radially-extending tubes, means for effecting relativevertical movement between said container and chambers, and meansforrotating said container within the centrifuging chamber to expellengthwise of the tubes the surplus paraffine carried by the tubes. I I

5. A parafiining machine having a boiler pros viding a lowerparafiine-containing chamber and an upper centrifuging chamber, arotatable member mounted within said boiler and having 'ra-'dially-disposed basket supports thereon in spaced relation, a pluralityof independent baskets entirely offset in one radial direction from thecenter for containing tubes extending radially of said member, means foreffecting relative vertical movement between said member and thechambers, and means for rotating said member within the centrifugingchamber to expel lengthwise of the tubes contained in the baskets thesurplus parafiine carried by the tubes.

KARL E. GARLING.

